You simply cannot provide the traffic those sites can produce for your rental and in my humble opinion your efforts are probably better spent optimizing and improving within there to maximize your rental numbers.  

you can plug your numbers in and see when your optimal time to sell is.  

Seems like you should focusing on optimize this revenue stream. 

The optimal opportunity would be to do an FHA 203k loan on a 4 family and refinance.

Weekends are higher than weekdays, busy season is higher than slow season, holidays and special events are higher than regular days… if your goal is to have some degree of optimization you need a thorough understanding of your market that even a dynamic pricing tool doesn’t provide.

Survey: Small biz owners excited about the futureBusiness owners' optimism about the U.S. economy and the outlook for their own businesses has reached levels never-before seen in the 15-year history of the PNC Economic Outlook, a biannual telephone survey of small- and medium-sized business owners.A strong majority of small business owners (88 percent) surveyed are optimistic about the near-term outlook for the national economy, up from 71 percent in the fall and 56 percent last spring.

(Brother the plumber, sister the electrician etc etc)5) Train chimpanzees for the labor because you do not require workers comp insurance on non humans.EASY AS 1 2 3 This is the best way to optimize your profits in building

Those alerts can also be seen if you mouse over the "Inbox" on the upper right menu bar and scroll down.

In addition, Danny, who is a computer geek of some sort (Sorry Danny, but I do love your story about what drove you from geek-world to flipping) uses his flipping experience to optimize a website for what we all do.....wholesaling, flipping, getting leads...the website is so user friendly it allows you to tailor whatever you want to focus on,wholesaling,  RE selling,,,,and it comes crystal clear videos narrated by you guessed it Danny the ace flipper ;)If BP was amazon, i'd give it 5 stars.Nice addition to BP.

*Why* is it so horrible that the gross annual rents come out to a quarter of my optimal buying price?